Map-rack



(No Model.) Y

E'. P., MONTGOMERY.

` MAP RACK..

No. 316 905. Patented A131262@ A1885.

-ing within the same.

NITED STATES PATENT OFFICE.

FRANK P. MONTGOMERY, OF lSAN JOS, CALIFORNIA.

MAP-RAGK.

SPBCIPIICATIN forming part of Letters' PatentNo. 316,905, dated April z8, 1885'.

Application nieu Maren 12, 1884. (No model.)

To all whom it may concern.-

Be it known that I, FRANK P. ll/Iormcfoin ERY, a citizen of the United States, and a resident of San Jos, in the county of Santa Clara and State of California, have invented certainnew and useful Improvements in Map Racks; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying draw-ings, which form a part of this specitication, and in which- Figure l is a front view of my improved adjusta ble map-rack, showing the same extended to its greatest width. Fig. 2 is a front view, showing the rack adjusted to about one-half ot' its entire width; and Fig. 3 is a perspective view of the rack, showing it adjusted to about two-thirds of its entire width.

Similar letters of reference indicate corresponding parts in all the figures.

Myi'nvention consists in the improved construction and combination of parts of an adjustable map-rack, as will be hereinafter more fully described, and particularly pointed out in the claims.

In the accompanying drawings, A A' represent the rear uprights of the rack, one of which, A', is secured to a suitable bearing or support, u. The upper cross piece of the rear frame consists of a tubular rod, B, extending horizontally from the upper end of the upright A', and a rod, B', extending from the upper end of the upright A, and of such a size as to fit and slide within the tubular rod B, the parts B and B being of about the same length. The free end of the tubular rod B is supported against a suitable support or bearing, b, by a staple, c. y

rlhe lower ends of the nprights A and A' are adjustably connected by means of a tubular rod, C, and rod C', adapted to slide Within the tube C, these lower rods also passing through the lower ends of the side pieces of the front frame of the rack within which the maps are supported. The upper ends of these side pieces, D D', are adjustably connected by means of a tubular rod, E, and a rod, E', slid- The various tubular rods, which are similar in construction, are provided with thumb'screws d, by means of which the various sliding rods vare secured firmly in their adj usted position.

F indicates an adjustable side piece, which slides upon the tubular rods C and E, being held in its adjusted position by means of suitable thumb-screws, f, a number of bearings, Gr, being secured upon the inner side of the said sliding piece and the inner side of the upright D, for the purpose of receiving the ends of self-acting spring-rollers'H, of ordinary construction, upon which rollers the maps are mounted.

I indicates a cord or wire which is fastened at one end to the upper portion of the hinged part of the rack, passes over the upper horizontal tube, B, and has secured upon its lower free end a weight, I', of suflicient weight to hold the rack in its closed position.

The upper ends of the side pieces of the front and rear frames of the rack are connected by springs J J, the construction of which is moreclearly shown in Fig. 3 ot' the drawings, the said sp rings serving to open the rack when the weight I' Vis lifted from below, and also serving to hold the hinged parts of the rack together in case the cord I should accidentally slip or break.

K represents a curtain which is supported upon an automatic spring-roller, K', and is of l such a size that when pulled down it will entirely cover and shield the map-rack and the maps and charts thereon from dust, dirt, 8vo.

From the foregoing description, taken in connection with the accompanying drawings, the construction of my improved adjustable map rack will readily be understood without requiring further explanation.

It will be seen that by constructing the various parts of the rack in the manner defrom the ground without having to mount roo upon a chair or step-ladder.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United Statesscribed the width of the rack may be adjusted l. The combination, with the uprights A A' and D D', of the adjustable cross-pieces or connections B B', C C', and E E', each crosspieoe consisting of a tubular rod and a solid rod adapted to slide Within the tubular rod, as set forth.

2. The combination, with the uprights A A' D D' and adjustable connections B B', C C', andE E', of the springs J J, operating-cord I, and Weight I', by means of which the map may be automaticallyopeued or closed, as set forth.

3. The combination of the uprights A A' and D D', adjustable connections B B', O C',

and E E', constructed as described, sliding 15 pieces F, moving adjustably upon the tubular rods C and E, springs J J, operating-cord I, and Weight I', all constructed and arranged to operate substantially in the manner and for the purpose shown and described.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two Witnesses.

FRANK P. MONTGOMERY.

Witnesses:

J. H. LEONARD, JAMEs B. CAPP. 

